CN111015489B - Polishing device for outer surface of revolving body - Google Patents
Polishing device for outer surface of revolving body Download PDFInfo
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- CN111015489B CN111015489B CN201911153391.XA CN201911153391A CN111015489B CN 111015489 B CN111015489 B CN 111015489B CN 201911153391 A CN201911153391 A CN 201911153391A CN 111015489 B CN111015489 B CN 111015489B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B29/00—Machines or devices for polishing surfaces on work by means of tools made of soft or flexible material with or without the application of solid or liquid polishing agents
- B24B29/02—Machines or devices for polishing surfaces on work by means of tools made of soft or flexible material with or without the application of solid or liquid polishing agents designed for particular workpieces
- B24B29/04—Machines or devices for polishing surfaces on work by means of tools made of soft or flexible material with or without the application of solid or liquid polishing agents designed for particular workpieces for rotationally symmetrical workpieces, e.g. ball-, cylinder- or cone-shaped workpieces
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- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Abstract
The invention belongs to the technical field of cleaning and polishing of the outer surface of a variable-diameter type revolving body workpiece, and particularly relates to a revolving body outer surface polishing device. The problem of current burnishing machine be difficult to satisfy the unable abrasive paper that uses of reducing column class solid of revolution, the burnishing tool of steel brush type, including the subassembly of polishing, drive assembly, radially compress tightly the subassembly, quartzy sand is collected and is fought the rack, quartzy sand is collected frame and quartzy sand guide funnel, the subassembly of polishing, drive assembly and radially compress tightly the unit mount on the equipment fixing base plate, the last product of installing of drive assembly, product one side sets up the subassembly of polishing, the radial subassembly that compresses tightly of product opposite side installation, equipment fixing base plate below installation quartzy sand guide funnel, quartzy sand guide funnel below sets up quartzy sand and collects the frame, quartzy sand is collected the frame and is fixed on quartzy sand is collected and is. The invention realizes the polishing of the outer surface of the variable-diameter revolving body.
Description
Technical Field
The invention belongs to the technical field of cleaning and polishing of the outer surface of a variable-diameter type revolving body workpiece, and particularly relates to a revolving body outer surface polishing device.
Background
The variable-diameter type revolving body workpiece is applied to various industries, in the process of machining and producing parts, the outer surface of the workpiece is required to reach a certain degree of cleanliness in the early stage of detecting the appearance size and the appearance defects of the workpiece, and meanwhile, the surface of a product is required not to be damaged by pressure injury, scratch injury and the like. If oil stains or other dregs exist on the outer surface, the detection result is directly influenced.
The polishing product to solid of revolution part at present mainly aims at cylinder class product, and the burnishing tool that adopts is mostly abrasive paper, steel brush, can't satisfy the surface polishing of reducing class part, and used burnishing tool can cause the damage of different degrees to the workpiece surface. Therefore, in the field of variable-diameter rotary bodies, when the requirement on the degree of surface damage is strict, the conventional equipment cannot meet the use requirement.
Disclosure of Invention
The invention provides a polishing device for the outer surface of a revolving body, aiming at solving the problem that the existing polishing machine is difficult to meet the requirement that the revolving body with variable diameter columns cannot use a polishing tool of a sand paper or steel wire brush type.
The invention adopts the following technical scheme: the utility model provides a solid of revolution surface burnishing device, including the subassembly of polishing, drive assembly, radially compress tightly the subassembly, quartz sand is collected and is fought the rack, frame and quartz sand guide funnel are collected to quartz sand, the subassembly of polishing, drive assembly and radially compress tightly the unit mount on the equipment fixing base plate, the last installation product of drive assembly, product one side sets up the subassembly of polishing, the radial subassembly that compresses tightly of product opposite side installation, equipment fixing base plate below installation quartz sand guide funnel, quartz sand guide funnel below sets up quartz sand and collects the frame, quartz sand is collected the frame and is fixed on quartz sand is collected and is fought the rack.
Further, the polishing assembly comprises a polishing assembly moving bottom plate capable of sliding along the linear guide rail, two ends of the polishing assembly moving bottom plate are connected with a polishing assembly driving cylinder through a driving cylinder connecting plate, a profiling assembly mounting seat is mounted on the polishing assembly moving bottom plate, a profiling assembly is mounted on the profiling assembly mounting seat, the top of the profiling assembly mounting seat is fixedly connected with a felt pressing bottom plate, a felt pressing upper pressing plate is arranged on the upper side of the felt pressing bottom plate, a felt is fixedly pressed between the felt pressing bottom plate and the felt pressing upper pressing plate and is arranged above the profiling assembly, quartz sand feeding device supports are fixedly mounted on two sides of the polishing assembly moving bottom plate, a funnel driving cylinder is mounted on the top of each quartz sand feeding device support through a cylinder fixing mounting seat, a sliding block on each funnel driving cylinder is fixedly connected with a funnel through a funnel mounting plate, the quartz sand size adjusting valve and the switch air cylinder are installed at the bottom of the two sides of the funnel respectively, the switch air cylinder drives the quartz sand size adjusting valve, and the switch air cylinder is fixed on the funnel mounting plate through the switch insertion plate.
Further, the driving assembly comprises a motor mounting seat, a driving motor is fixed on the motor mounting seat, a circular friction plate is mounted at the shaft end of the driving motor, a V-shaped roller assembly and a V-shaped block which are used for mounting a product are arranged in front of the circular friction plate, a conical floating ejector is arranged in front of the product and mounted on a self-aligning belt seat bearing, the self-aligning belt seat bearing is mounted on the movable seat and moved through an air cylinder, and the movable seat is fixedly mounted on a sliding block of the linear guide rail through a sliding block connecting plate.
Further, the radial subassembly that compresses tightly includes translation cylinder, translation cylinder fixed mounting is on the equipment fixing bottom plate, translation cylinder's slider passes through the cylinder mounting panel and is connected with the pressure cylinder, installs the connection diaphragm on the pressure cylinder, it has the mount pad that floats to connect the terminal articulated of diaphragm, installs the universal ball bearing of multiunit on the mount pad that floats, can compress tightly in the product top after the translation of the universal ball bearing of multiunit, is fixed with two one ends of tow chain on the cylinder mounting panel, and two other ends of tow chain are fixed on the equipment fixing bottom plate.
Before polishing, products are placed on a V-shaped roller assembly and a V-shaped block, the V-shaped roller assembly plays a main supporting role for the products, the products are prevented from toppling after the center of gravity of the products is placed and shifted, the V-shaped block is arranged below one end, prone to toppling, of the products and plays an auxiliary supporting role for the products, after the products are placed in place, an air cylinder pushes a moving seat to drive a conical floating top mounted on a self-aligning belt seat bearing to move towards the direction close to the products until the conical part of the conical floating top extends into the mouth of the products and pushes the products to move and tightly press a circular friction plate mounted at the shaft end of a driving motor, a translation air cylinder pushes a pressing air cylinder above the products, the pressing air cylinder drives a plurality of groups of universal ball bearings mounted on a floating mounting seat to press downwards to achieve radial pressing and positioning of the products, at the moment, the driving motor is started, after the product rotating speed is stable, the grinding assembly driving cylinder pushes the whole grinding assembly to move towards the direction close to the product on the linear guide rail until the felt mounted on the profiling assembly is attached to the product to finish polishing, and then all the action parts reset.
Because the felt is polished for a long time and is full of oil stains and dregs to influence the polishing effect, the funnel driving cylinder in the quartz sand feeding device of the polishing assembly can periodically drive the funnel filled with quartz sand to move in the polishing process, the switch cylinder arranged on the funnel mounting plate is opened in the moving process, the quartz sand flows to the contact area of the felt and a product under the action of gravity, so that the polishing effect is improved, the quartz sand which is not adhered to the felt falls into the quartz sand collecting frame through the quartz sand guiding funnel to be recycled,
in order to realize the polishing of products with different shapes, the corresponding profiling components are replaced according to the actual appearance of the products, and the position of the motor mounting seat is synchronously adjusted according to the length of the products, so that the compatibility of various products is realized.
Compared with the prior art, the invention has the following beneficial effects:
1. the corresponding profiling components are replaced according to the actual appearance of the product, and the position of the motor mounting seat is synchronously adjusted according to the length of the product, so that the outer surface of the reducing rotary body is polished.
2. The felt and the quartz sand material are used for solving the polishing problem under the condition that conventional polishing means such as a steel wire brush, sand paper and the like cannot be used.
3. The product compatibility of different lengths and different shapes is realized, and the application range is expanded.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of a sanding assembly;
FIG. 3 is a schematic view of a driving assembly;
FIG. 4 is a schematic view of a radial compression assembly;
in the figure, 1-, 2-quartz sand collecting hopper placing rack, 3-quartz sand collecting frame, 4-grinding assembly, 5-quartz sand guiding hopper, 6-driving assembly, 7-radial compacting assembly, 8-equipment mounting base plate, 4.1-grinding assembly driving cylinder, 4.2-driving cylinder connecting plate, 4.3-linear guide rail, 4.4-quartz sand loading device support, 4.5-grinding assembly moving base plate, 4.6-goat's horn nut, 4.7-cylinder fixing mounting base, 4.8-hopper driving cylinder, 4.9-cylinder shield, 4.10-drag chain I, 4.11-felt compacting base plate, 4.12-profiling assembly mounting base, 4.13-profiling assembly, 4.14-hopper mounting plate, 4.15-switch plug board, 4.16-hopper, 4.17-quartz sand size regulating valve, 4.18-switch cylinder, 4.19-felt pressing upper plate, 6.1-motor mounting seat, 6.2-driving motor, 6.3-round friction plate, 6.4-V-shaped roller component, 6.5-product, 6.6-V-shaped block, 6.7-conical floating top, 6.8-self-aligning belt seat bearing, 6.9-moving seat, 6.10-linear guide rail, 6.11-sliding block connecting plate, 6.12-cylinder, 7.1-multi-group universal ball bearing, 7.2-floating mounting seat, 7.3-connecting transverse plate, 7.4-pressing cylinder, 7.5-cylinder mounting plate and 7.6-translation cylinder.
Detailed Description
As shown in fig. 1, including polishing assembly 4, drive assembly 6, radially compress tightly subassembly 7, quartz sand is collected and is fought rack 2, frame 3 and quartz sand guide funnel 5 are collected to quartz sand, polishing assembly 4, drive assembly 6 and radially compress tightly subassembly 7 and install on equipment fixing base plate 8, install product 6.5 on the drive assembly 6, product 6.5 one side sets up polishing assembly 4, product 6.5 opposite side installation radially compresses tightly subassembly 7, equipment fixing base plate 8 below installation quartz sand guide funnel 5, quartz sand guide funnel 5 below sets up quartz sand and collects frame 3, quartz sand is collected frame 3 and is fixed on quartz sand is collected and is fought rack 2.
As shown in figure 2, wherein the polishing assembly 4 comprises a polishing assembly moving bottom plate 4.5 capable of sliding along a linear guide rail 4.3, two ends of the polishing assembly moving bottom plate 4.5 are connected with a polishing assembly driving cylinder 4.1 through a driving cylinder connecting plate 4.2, a profiling assembly mounting seat 4.12 is arranged on the polishing assembly moving bottom plate 4.5, a profiling assembly 4.13 is arranged on the profiling assembly mounting seat 4.12, the top of the profiling assembly mounting seat 4.12 is fixedly connected with a felt pressing bottom plate 4.11, a felt pressing upper pressing plate 4.19 is arranged on the upper side of the felt pressing bottom plate 4.11, a felt is fixedly pressed between the felt pressing bottom plate 4.11 and the felt pressing upper pressing plate 4.19 and is arranged above the profiling assembly 4.13, quartz sand feeding device supports 4.4 are fixedly arranged on two sides of the polishing assembly moving bottom plate 4.5, a funnel driving cylinder 4.8 is arranged on the top of the quartz sand feeding device supports 4.4.4 through a cylinder fixing mounting seat 4.7, a slide block on the driving cylinder 4.8 is fixedly connected with a funnel 16, the funnel 4.16 is arranged above the felt, a quartz sand size adjusting valve 4.17 and a switch cylinder 4.18 are respectively arranged at the bottom of two sides of the funnel 4.16, the switch cylinder 4.18 drives the quartz sand size adjusting valve 4.17, and the switch cylinder 4.18 is fixed on the funnel mounting plate 4.14 through a switch plugboard 4.15. The funnel drives and is connected with the one end of tow chain 4.10 on the actuating cylinder 4.8, and the other end of tow chain 4.10 is fixed, and tow chain 4.10 is used for protecting the pipeline that funnel driven actuating cylinder 4.8 is not damaged in the in-process of moving forward and retreating.
As shown in fig. 3, the driving assembly 6 includes a motor mounting seat 6.1, the motor mounting seat 6.1 is fixedly mounted on the equipment mounting base plate 8, the driving motor 6.2 is fixed on the motor mounting seat 6.1, a circular friction plate 6.3 is mounted at the shaft end of the driving motor 6.2, the product 6.5 is pressed on the circular friction plate 6.3 through a conical floating top 6.7 at the other side of the product 6.5, meanwhile, a V-shaped roller assembly 6.4 and a V-shaped block 6.6 are supported below the product 6.5 to assist in supporting the product, the conical floating top 6.7 is mounted on a self-aligning belt seat bearing 6.8, the self-aligning belt seat bearing 6.8 is mounted on a moving seat 6.9 and moved through an air cylinder 6.12, the moving seat 6.9 is fixedly mounted on a slider of the linear guide rail 6.10 through a slider connecting plate 6.11, and the air cylinder 6.12 and the linear guide rail 6.10 are both fixedly mounted on the equipment mounting base.
As shown in fig. 4, the radial pressing assembly 7 comprises a translation cylinder 7.6, the translation cylinder 7.6 is fixedly installed on the equipment installation bottom plate 8, the compression cylinder 7.4 is connected with a sliding block of the translation cylinder 7.6 through a cylinder installation plate 7.5, a connection transverse plate 7.3 is installed on the compression cylinder 7.4, a floating installation seat 7.2 is hinged to the tail end of the connection transverse plate 7.3, a plurality of groups of universal ball bearings 7.1 are installed on the floating installation seat 7.2, the plurality of groups of universal ball bearings 7.1 can be pressed above a product 6.5 after being translated, one end of a drag chain II 7.7 is fixed on the cylinder installation plate 7.5, and the other end of the drag chain II 7.7 is fixed on the equipment installation bottom plate 8. The second drag chain 7.7 is used for protecting the connecting pipelines of the translation cylinder 7.6 and the pressing cylinder 7.4 from being damaged in the moving process.
The equipment mounting base plate is arranged on the frame 1, the quartz sand collecting frame placing rack 2 is fixed in the frame 1, the quartz sand collecting frame 3 is placed on the quartz sand collecting frame placing rack 2, the quartz sand guide funnel 5 is fixed on the lower surface of the equipment mounting base plate 8, the polishing component 4, the driving component 6 and the radial pressing component 7 are all directly and fixedly arranged on the equipment mounting base plate 8,
as shown in fig. 1 to 4, before polishing, a product is placed on a V-shaped roller assembly 6.4 and a V-shaped block 6.6, the V-shaped roller assembly 6.4 plays a main supporting role for the product, in order to prevent the product from toppling after the center of gravity of the product is placed and shifted, the V-shaped block 6.6 is installed below one end of the product which is easy to topple and plays an auxiliary supporting role for the product, after the product is placed in place, an air cylinder 6.12 pushes a movable base 6.9 to drive a conical floating top 6.7 installed on a self-aligning belt base bearing 6.8 to move towards the direction close to the product until a conical part of the conical floating top 6.7 extends into the mouth of the product and pushes the product to move and press a circular friction plate 6.3 installed at the shaft end of a driving motor 6.2, a translation air cylinder 7.6 pushes a pressing air cylinder to the upper part of the product, the pressing air cylinder 7.4 drives a plurality of universal ball bearings 7.1 installed on a floating installation base 7.2, at the moment, a driving motor is started, the rotation of the driving motor drives a product to rotate at a high speed by virtue of friction, after the rotating speed of the product is stable, a polishing assembly driving cylinder 4.1 pushes the whole polishing assembly 4 to move towards the direction close to the product on a linear guide rail 4.3 until the felt mounted on a profiling assembly is attached to the product to finish polishing, and then all action parts reset.
Because the felt can be fully adhered with oil stains and dregs to influence the polishing effect after being polished for a long time, the funnel driving cylinder 4.8 in the quartz sand feeding device of the polishing component can be used for driving the funnel filled with quartz sand to move periodically in the polishing process, the switch cylinder 4.18 arranged on the funnel mounting plate 4.14 is opened in the moving process, the quartz sand flows to the contact area of the felt and products under the action of gravity, so that the polishing effect is improved, the quartz sand which is not adhered to the felt falls into the quartz sand collecting frame 3 through the quartz sand guiding funnel 5 for recycling, in order to realize the polishing of products with different shapes, the corresponding profiling component 4.13 is replaced according to the actual shape of the products, and the position of the motor mounting seat 6.1 is synchronously adjusted according to the length of the products, so that the compatibility of various products is realized.
Claims (3)
1. A solid of revolution surface burnishing device which characterized in that: the quartz sand collecting device comprises a polishing component (4), a driving component (6), a radial pressing component (7), a quartz sand collecting hopper placing frame (2), a quartz sand collecting frame (3) and a quartz sand guiding funnel (5), wherein the polishing component (4), the driving component (6) and the radial pressing component (7) are installed on a device installation bottom plate (8), a product (6.5) is installed on the driving component (6), the polishing component (4) is arranged on one side of the product (6.5), the radial pressing component (7) is installed on the other side of the product (6.5), the quartz sand guiding funnel (5) is installed below the device installation bottom plate (8), the quartz sand collecting frame (3) is arranged below the quartz sand guiding funnel (5), and the quartz sand collecting frame (3) is fixed on the quartz sand collecting hopper placing frame (2);
the grinding assembly (4) comprises a grinding assembly moving bottom plate (4.5) capable of sliding along a linear guide rail (4.3), two ends of the grinding assembly moving bottom plate (4.5) are connected with a grinding assembly driving cylinder (4.1) through a driving cylinder connecting plate (4.2), a profiling assembly mounting seat (4.12) is installed on the grinding assembly moving bottom plate (4.5), a profiling assembly (4.13) is installed on the profiling assembly mounting seat (4.12), the top of the profiling assembly mounting seat (4.12) is fixedly connected with a felt pressing bottom plate (4.11), a felt pressing upper pressing plate (4.19) is arranged on the upper side of the felt pressing bottom plate (4.11), a felt is fixedly pressed between the felt pressing bottom plate (4.11) and the felt pressing upper pressing plate (4.19), the felt is arranged above the profiling assembly (4.13), quartz sand feeding device supports (4.4) are fixedly installed on two sides of the grinding assembly moving bottom plate (4.5), and quartz sand feeding device supports (4.4.4) are fixedly installed with a funnel driving cylinder (8.7), the slider on funnel drive actuating cylinder (4.8) passes through funnel mounting panel (4.14) and funnel (4.16) fixed connection, funnel (4.16) set up in the felt top, quartz sand size control valve (4.17) and switch cylinder (4.18) are installed respectively to funnel (4.16) both sides bottom, switch cylinder (4.18) drive quartz sand size control valve (4.17), switch cylinder (4.18) are fixed on funnel mounting panel (4.14) through switch picture peg (4.15).
2. The polishing device for the outer surface of a rotor according to claim 1, wherein: the driving assembly (6) comprises a motor mounting seat (6.1), a driving motor (6.2) is fixed on the motor mounting seat (6.1), a circular friction plate (6.3) is mounted at the shaft end of the driving motor (6.2), a V-shaped roller assembly (6.4) and a V-shaped block (6.6) for mounting a product (6.5) are arranged in front of the circular friction plate (6.3), a conical floating ejector (6.7) is arranged in front of the product (6.5), the conical floating ejector (6.7) is mounted on a self-aligning belt seat bearing (6.8), the self-aligning belt seat bearing (6.8) is mounted on a moving seat (6.9) and moved through an air cylinder (6.12), and the moving seat (6.9) is fixedly mounted on a sliding block of a linear guide rail (6.10) through a sliding block connecting plate (6.11).
3. The polishing device for the outer surface of a rotor according to claim 1, wherein: radial compress tightly subassembly (7) including translation cylinder (7.6), translation cylinder (7.6) fixed mounting is on equipment fixing bottom plate (8), the slider of translation cylinder (7.6) passes through cylinder mounting panel (7.5) and is connected with compressing tightly cylinder (7.4), install on compressing tightly cylinder (7.4) and connect diaphragm (7.3), it has unsteady mount pad (7.2) to connect terminal the articulating of diaphragm (7.3), install multiunit universal ball bearing (7.1) on unsteady mount pad (7.2), can compress tightly in product (6.5) top after multiunit universal ball bearing (7.1) translation, be fixed with tow chain two (7.7) one end on cylinder mounting panel (7.5), tow chain two (7.7) other end is fixed on equipment fixing bottom plate (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911153391.XA CN111015489B (en) | 2019-11-22 | 2019-11-22 | Polishing device for outer surface of revolving body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911153391.XA CN111015489B (en) | 2019-11-22 | 2019-11-22 | Polishing device for outer surface of revolving body |
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| Publication Number | Publication Date |
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| CN111015489A CN111015489A (en) | 2020-04-17 |
| CN111015489B true CN111015489B (en) | 2021-05-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201911153391.XA Active CN111015489B (en) | 2019-11-22 | 2019-11-22 | Polishing device for outer surface of revolving body |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112548783A (en) * | 2020-12-18 | 2021-03-26 | 广西鑫深科技有限公司 | Leather core winding paper tube paper house polishing tool and polishing method |
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| EP0833719A1 (en) * | 1995-06-16 | 1998-04-08 | Werner Marcegaglia | Device for polishing the interiors of pipes and fittings |
| CN1312747A (en) * | 1998-06-25 | 2001-09-12 | 尤诺瓦英国有限公司 | Waffer edge polishing method and apparatus |
| CN103282173A (en) * | 2011-05-31 | 2013-09-04 | 新东工业株式会社 | Device for machining columnar member |
| CN104786131A (en) * | 2015-04-20 | 2015-07-22 | 骏马石油装备制造有限公司 | Polishing machine for pipe pretreatment |
| CN208645028U (en) * | 2018-06-28 | 2019-03-26 | 胡庆 | Burnishing device is used in a kind of processing of mechanical transmission part |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2197167Y (en) * | 1994-09-23 | 1995-05-17 | 崔淦 | Hydraulic and synchronous contour cylindrical grinder |
| TWI566887B (en) * | 2010-09-01 | 2017-01-21 | Sintokogio Ltd | Cylindrical components of the grinding device |
| CN207058216U (en) * | 2017-04-18 | 2018-03-02 | 佛山市业恒不锈钢有限公司 | Stainless steel tube polishing mechanism |
| CN207326659U (en) * | 2017-08-22 | 2018-05-08 | 广东和氏工业技术集团股份有限公司 | Based on compound machine people's deburring equipment |
| US11440156B2 (en) * | 2018-06-19 | 2022-09-13 | Islamic Azad University of Najafabad | Magnetic abrasive finishing of curved surfaces |
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2019
- 2019-11-22 CN CN201911153391.XA patent/CN111015489B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0833719A1 (en) * | 1995-06-16 | 1998-04-08 | Werner Marcegaglia | Device for polishing the interiors of pipes and fittings |
| CN1312747A (en) * | 1998-06-25 | 2001-09-12 | 尤诺瓦英国有限公司 | Waffer edge polishing method and apparatus |
| CN103282173A (en) * | 2011-05-31 | 2013-09-04 | 新东工业株式会社 | Device for machining columnar member |
| CN104786131A (en) * | 2015-04-20 | 2015-07-22 | 骏马石油装备制造有限公司 | Polishing machine for pipe pretreatment |
| CN208645028U (en) * | 2018-06-28 | 2019-03-26 | 胡庆 | Burnishing device is used in a kind of processing of mechanical transmission part |
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| CN111015489A (en) | 2020-04-17 |
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